112 lines
3.7 KiB
Ruby
112 lines
3.7 KiB
Ruby
# frozen_string_literal: true
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# If Mini Profiler is included via gem
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if Rails.configuration.respond_to?(:load_mini_profiler) && Rails.configuration.load_mini_profiler
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require 'rack-mini-profiler'
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require 'flamegraph'
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begin
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require 'memory_profiler'
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rescue => e
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STDERR.put "#{e} failed to require mini profiler"
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end
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# initialization is skipped so trigger it
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Rack::MiniProfilerRails.initialize!(Rails.application)
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end
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if defined?(Rack::MiniProfiler) && defined?(Rack::MiniProfiler::Config)
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# note, we may want to add some extra security here that disables mini profiler in a multi hosted env unless user global admin
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# raw_connection means results are not namespaced
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#
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# namespacing gets complex, cause mini profiler is in the rack chain way before multisite
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Rack::MiniProfiler.config.storage_instance = Rack::MiniProfiler::RedisStore.new(
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connection: DiscourseRedis.new(nil, namespace: false)
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)
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skip = [
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/^\/message-bus/,
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/^\/extra-locales/,
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/topics\/timings/,
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/assets/,
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/\/user_avatar\//,
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/\/letter_avatar\//,
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/\/letter_avatar_proxy\//,
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/\/highlight-js\//,
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/\/svg-sprite\//,
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/qunit/,
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/srv\/status/,
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/commits-widget/,
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/^\/cdn_asset/,
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/^\/logs/,
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/^\/site_customizations/,
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/^\/uploads/,
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/^\/javascripts\//,
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/^\/images\//,
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/^\/stylesheets\//,
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/^\/favicon\/proxied/
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]
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# we DO NOT WANT mini-profiler loading on anything but real desktops and laptops
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# so let's rule out all handheld, tablet, and mobile devices
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Rack::MiniProfiler.config.pre_authorize_cb = lambda do |env|
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path = env['PATH_INFO']
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(env['HTTP_USER_AGENT'] !~ /iPad|iPhone|Android/) &&
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!skip.any? { |re| re =~ path }
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end
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# without a user provider our results will use the ip address for namespacing
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# with a load balancer in front this becomes really bad as some results can
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# be stored associated with ip1 as the user and retrieved using ip2 causing 404s
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Rack::MiniProfiler.config.user_provider = lambda do |env|
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request = Rack::Request.new(env)
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id = request.cookies["_t"] || request.ip || "unknown"
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id = id.to_s
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# some security, lets not have these tokens floating about
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Digest::MD5.hexdigest(id)
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end
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Rack::MiniProfiler.config.position = 'left'
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Rack::MiniProfiler.config.backtrace_ignores ||= []
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Rack::MiniProfiler.config.backtrace_ignores << /lib\/rack\/message_bus.rb/
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Rack::MiniProfiler.config.backtrace_ignores << /config\/initializers\/silence_logger/
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Rack::MiniProfiler.config.backtrace_ignores << /config\/initializers\/quiet_logger/
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# Rack::MiniProfiler.counter_method(ActiveRecord::QueryMethods, 'build_arel')
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# Rack::MiniProfiler.counter_method(Array, 'uniq')
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# require "#{Rails.root}/vendor/backports/notification"
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# inst = Class.new
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# class << inst
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# def start(name,id,payload)
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# if Rack::MiniProfiler.current && name !~ /(process_action.action_controller)|(render_template.action_view)/
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# @prf ||= {}
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# @prf[id] ||= []
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# @prf[id] << Rack::MiniProfiler.start_step("#{payload[:serializer] if name =~ /serialize.serializer/} #{name}")
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# end
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# end
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# def finish(name,id,payload)
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# if Rack::MiniProfiler.current && name !~ /(process_action.action_controller)|(render_template.action_view)/
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# t = @prf[id].pop
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# @prf.delete id unless t
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# Rack::MiniProfiler.finish_step t
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# end
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# end
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# end
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# disabling for now cause this slows stuff down too much
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# ActiveSupport::Notifications.subscribe(/.*/, inst)
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# Rack::MiniProfiler.profile_method ActionView::PathResolver, 'find_templates'
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end
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if ENV["PRINT_EXCEPTIONS"]
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trace = TracePoint.new(:raise) do |tp|
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puts tp.raised_exception
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puts tp.raised_exception.backtrace.join("\n")
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puts
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end
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trace.enable
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end
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